A British-Iranian charity worker who was imprisoned in Tehran for over six years says she was forced to sign a falsified confession to spying before being released two months ago.

Nazanin Zaghari-Ratcliffe said that British government personnel was present at Tehran airport when she signed the fraudulent admission to espionage “under duress.”

She claimed that Iranian authorities informed her that until she signed, “you won’t be able to travel on the plane.”

“The whole thing of me signing the forced confession was filmed,” Zaghari-Ratcliffe told the BBC in an interview broadcast on Monday.

“It’s a tool. So I’m sure they will show that someday.”

Tulip Siddiq, a Labour Party politician who represents Zaghari-London Ratcliffe’s constituency, said the news posed “serious issues” for the British government.

Foreign Secretary Liz Truss, she added, “must set out in Parliament what she knew about this disturbing finding and the implications it might have on my constituent.”

In April 2016, Zaghari-Ratcliffe was arrested at Tehran’s airport on her way back to the UK after visiting her family in Iran. She worked for the Thomson Reuters Foundation, the news agency’s philanthropic arm, but she was on holiday at the time of her arrest.

Zaghari-Ratcliffe was sentenced to five years in prison after she was convicted of plotting the overthrow of Iran’s government, a charge that she, her supporters, and rights groups denied.

She had been under house arrest at her parents’ home in Tehran for the last two years.

She and another dual citizen, Anoosheh Ashoori, were released and flown back to the UK in March.

Their release came after Britain paid a £400 million ($503 million) debt to Iran stemming from a dispute over tanks that were ordered in the 1970s but were never delivered.

For the latest International News Follow BOL News on Google News. Read more on Latest International News on oldsite.bolnews.com